It’s been almost two months since The Oprah Winfrey Show wrapped up its 25-year run. But over on the daytime queen’s new cable net OWN, the addictive Season 25: Oprah Behind the Scenes is still chugging along.

This Sunday at 8/7c, the series will give viewers a peek at what it really took to pull off May’s star-studded, farewell extravaganza — and all while keeping it a secret from Oprah!

Below, executive producer Sheri Salata previews the blood, sweat and tears that went into the massive undertaking, and reveals what Oprah really thought of her surprise swan song. READ MORE